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/*=============================================================================
Boost.Wave: A Standard compliant C++ preprocessor library
Definition of the abstract lexer interface
http://www.boost.org/
Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
Software License, Version 1.0. (See accompanying file
LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#if !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED)
#define CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED
#include <boost/wave/wave_config.hpp>
#include <boost/wave/util/file_position.hpp>
#include <boost/wave/language_support.hpp>
// this must occur after all of the includes and before any code appears
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_PREFIX
#endif
// suppress warnings about dependent classes not being exported from the dll
#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable : 4251 4231 4660)
#endif
///////////////////////////////////////////////////////////////////////////////
namespace boost {
namespace wave {
namespace cpplexer {
///////////////////////////////////////////////////////////////////////////////
//
// The lex_input_interface decouples the lex_iterator_shim from the actual
// lexer. This is done to allow compile time reduction.
// Thanks to JCAB for having this idea.
//
///////////////////////////////////////////////////////////////////////////////
template <typename TokenT>
struct lex_input_interface
{
typedef typename TokenT::position_type position_type;
lex_input_interface() {}
virtual ~lex_input_interface() {}
virtual TokenT& get(TokenT&) = 0;
virtual void set_position(position_type const &pos) = 0;
#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
virtual bool has_include_guards(std::string& guard_name) const = 0;
#endif
};
///////////////////////////////////////////////////////////////////////////////
} // namespace cpplexer
} // namespace wave
} // namespace boost
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
// the suffix header occurs after all of the code
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_SUFFIX
#endif
#endif // !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED)